Contura 51L Operating instructions

Brand: Contura

Model: 51L

Category: Pellet stove

Type: Operating instructions

Contura 51L is a wood burning stove with several features designed to make it easy and efficient to use. The stove has a nominal output of 5 kW and an efficiency level of 79%. It is suitable for use in Smoke Control Areas and has a removable handle for easy cleaning. The stove also features a firebox surround and log guard, as well as an ash-pan and grate shuttle. With its timeless design and long service life, the Contura 51L is a great choice for anyone looking for a stylish and efficient way to heat their home.

Installation/Lighting

INSTRUCTIONS

C 51L

www.contura.eu

EC Declaration of

conformity

MANUFACTURER

Name NIBE AB/Contura

Address Box 134, Skulptörvägen 10, SE-285 23 Markaryd

Place of manufacture Markaryd, Sweden

PRODUCT

Product type Stove fired by solid fuel

Type designation Contura

Standard SS-EN 13240

Intended for use Heating of living accommodation

Fuels Wood logs

Special conditions None

CE-MARKING Contura 51L

Issued 2006

Nominal output 5 kW

Fuel type Wood logs

Flue gas temperature 275° C

Energy efficiency 79%

Emission of CO 0,13%

Appendix

Lighting and installation instructions

Niklas Gunnarsson

Business area manager NIBE STOVES

Manufacturer’s assurance

The stove is approved by the Swedish National Testing and Research Institute, SP SITAC and

fulfils the applicable rules for CE marking. Manufacture of the product has taken place in

accordance with those documents that are the basis for the relevant type approval certification

and the required manufacturing checks.

378

001

378

001

Contura 51L is a Swan marked wood burning stove.

NIBE was the first stove manufacturer in Sweden to commit to Swan marking stoves. The Swan

mark is one aspect of our vision to be a company of the future, setting high quality standards

regarding the environment. Certification number 378-001.

CERTIFICATE

Table of contents

General 2

Installation distance to walls and ceiling 5

Removing the loose components 6

Adjusting and connecting H51L 8

Connection to the chimney 9

Lighting Instructions 10

A warm welcome to Contura.

A warm welcome to the Contura family. We hope

you will get a great deal of pleasure from your new

stove. As a new owner of a Contura stove you have

secured a product with timeless design and long

service life. Contura also has combustion that is both

environmentally friendly and eﬃcient for the best heat

production.

Read through these installation instructions carefully

before installation. Read how to best light your stove in

the lighting instructions.

The stove becomes very hot

During operation, certain surfaces of the stove become

very hot and can cause burn injury if touched. Be aware

of the strong heat radiated through the hatch glass.

Placing flammable material closer than the safe distance

indicated may cause a fire. Pyre lighting can cause quick

gas ignition with the risk of damage to property and

personal injury.

NOTE!

WARNING!

Report the installation of a stove to

your local authority.

The owner of the house is personally responsible

for ensuring compliance with the mandatory safety

requirements and must have the installation approved

by a qualified inspector. Your local chimney sweep

must also be informed about the installation as this

will affect the routines for regular chimney-sweeping

services.

CONTENTS

General

This manual contains instructions about how Contura 51L must be

assembled and installed.

To guarantee the function and safety of the stove we recommend

that it is installed by a professional. Our Contura agents can

recommend a suitable installer.

The stove is type approved and must be connected to a chimney

dimensioned for at least 350°C, The connector on the stove

is suitable for pipes with an inner diameter of Ø150 mm and

an outer diameter of maximum Ø154 mm. The room or space

containing a stove shall have a permanent air supply sufficent to

ensure proper combustion, to determine correct amount of air

supply use current edition of Building Regulations.

Eldstadsbeklädnad

Löstagbart handtag

Rosterreglage

Asklåda

Förbränningsluftsreglage

Brasbegränsare

Typskylt

Fire-box surround

Grate shuttle

Ash-pan

Log guard

Removable handle

940

150

840

175 175

370

HANDÖL

In accordance with standards below

marking was affixed:

European Standard:

SE Quality Certification, P-marked:

NO Standard NS 3059:

DE and A Standard DINplus

and Art 15a B-VG:

Type:

Nominal Output:

Fuel:

Minimun draught:

Flue gas temerature:

Energy efficiency:

Emission of CO in cumbustion products:

Distance to cumbustible wall (mm):

Production number:

Follow the installation instructions.

Use only recomended fuels

NIBE AB Box 134 SE-285 23 MARKARYD SWEDEN

2006

EN 13240

Cert no 220316

SINTEF 110-0257

RRF-40 07 1261

H51/H52/H52T

5 kW

Wood

12 Pa

275°C

79%

0,13%

Behind 150

Beside 500

Corner 150

HANDÖL

NIBE AB SE-85 21 Markaryd Sweden

Type:

Production no.

50-series

7090300236

Type plate

Air supply control

GENERAL

Building application

Before installing a stove

or erecting a chimney it is

necessary for you to apply

for planning permission

from your local authority.

Ask your local authority

for advice regarding

building regulations and the

application.

Hearth dimensions

The stove must be placed on a constructional heart with the

minimum dimensions shown beside, installations distances

must also be according to diagrams on next page. Check that

the building has enough bearing capacity for the heart, stove

and chimney. The stove can be loaded with maximum 100 kg of

chimney.

Chimney

Note! The stove installation and connection to a chimney must

be accomplished with the current edition of Building Regulations.

We recommend that you consult a local chimney sweep before the

installation to make sure that the chimney is in good condition.

The stove requires a draught in the chimney of at least –12

Pa. The draught is affected both by the length and area of the

chimney, and by how well sealed it is. Minimum recommended

chimney length is 3.5 m and a suitable cross section area is

150-200 cm² (140-160 mm in diameter). Carefully check that

the chimney is sealed and that there is no leakage around soot

hatches and flue connections.

Note that a flue with sharp bends and horizontal routing reduces

the draught in the chimney. Maximum horizontal flue is 1 m,

on the condition that the vertical flue length is at least 5 m. It

must be possible to sweep the full length of the flue and the soot

hatches must be easily accessible.

Technical data

Output 4 kW

Nominal output 5 kW

Efficiency level 79%

Model C51L

Weight (kg) 124

Width (mm) 495

Depth (mm) 420

Height (mm) 630

The connector’s inner diameter is Ø154 mm

Type approved in accordance with:

European standard EN-13240

Swedish environmental and quality marking,

Swan marked No 378 001 and

P-marking cert. no. 22 03 16

(N) NS 3059, Cert.nr SINTEF 110-0257

(DE/A) DINplus, Art. 15a B-VG RRF-40 07 1261

DEFRA exempted

The stove can be used in Smoke Control Areas. Smouldering, i.e.

reduced air supply, are prevented by blocking the combustion

damper of 4 kW output.

Installation distance to walls and ceiling

100

A 630

680

495

max Ø154

520

2000

Brændbart loft

420

135

D 20

B 510

C 65

max Ø154

390

150

840

Min. 370

735

Combustible wall

Constructional

Hearth

280

150

Min. 370

500

745

200

300

400

180

280

380

Combustible wall

Permitted area for combustible material

Constructional

Hearth

290

700

Min. 370

635

Fire-retardant wall of

brick or concrete

Constructional

Hearth

180

Min. 370

295

Fire-retardant wall of

brick or concrete

Constructional

Hearth

A = height from floor to top flue connection

B = height from floor to c/c smoke outlet rear

C = distance from back to c/c air inlet, Ø64

D = distance from back to smoke outlet rear

280

150

500

745

100

200

300

400

180

280

380

Sallittu alue tulenaralle materiaalille.

Tulenarka seinä

Combustible ceiling

Permitted area for combustible material.

INSTALLATION DISTANCES

C51L

Move the stove in position and check that the installation distances given in the diagrams are met. The minimum distance between

the stove opening and combustible parts of the building or décor must be at least 1 m.

When top connecting a steel flue please refer to the relevant manufacturer’s installation instructions. Observe the safety distances

to combustible material that steel flues require.

Removing the loose components

Smoke baffle

REMOVAL

Fire box surround

When sweeping, the smoke baffle must be lifted out, this can be

done when one side has been dismantled.

Fire bars

Lift the fire bars straight up, clean the ash from the guide groove

in the stove base plate before repositioning it in position.

Stove base plate

The stove base plate is lifted out when all the cladding has been removed.

Fixed or removable handle

The stove handle is fitted on delivery. To make the handle removable, replace the

screw for the lock hook with the shorter screw supplied.

Removing the loose components

REMOVAL

Adjusting and connecting

ADJUSTING AND CONNECTING

Preparations before rear connection

The stove is prepared for top connection on delivery. When

connecting from the rear, the cover and connection must be

swapped around.

• Dismantlethecladdingasinstructedpreviously,seepage 6-7.

• Tapouttheknockoutinthestove’sbackpanel,rememberto

protect the floor.

• Thenunscrewboththeconnectorandthecover.

• Switchplacesandreinstallthescrews.

After the stove has been adjusted and positioned according

to the installation distances, connection to the chimney is

carried out.

Put stove cement inside the flue connection and press the start

pipe into the connection.

Continue the chimney installation according to the chimney

installation instructions.

max Ø154

CHIMNEY

Adjusting the stove

• Positionthestoveonthehearthplate.

• Adjusttheheightofthefouradjustablefeetuntilthestoveis

horizontal.

LIGHTING IN THE RIGHT WAY

It is important that the correct amount of wood is used, especially

when lighting. If you are lighting the fire for the first time you

should use a set of scales to see how much 2 kg kindling is. Also

check what the normal and maximum weights look like.

The tiled stove is only intended for use with the door closed and it

is only then that the hot air flushing of the glass surfaces occurs.

Always open the door carefully and slowly to prevent blow back

because of the changing pressure in the stove.

The function of stoves differs depending on the draught

conditions in the chimney. Achieving the correct setting for the

combustion air damper usually takes a few attempts.

In order to obtain a good bed of embers, there should always be a

thin layer of ash and charred pieces in the tiled stove.

LIGHTING FOR THE FIRST TIME

The first time that the stove is lit, lighting should be

terminated after the initial fire has caught. This is so that

the cement that is used as sealant is able to harden. After

that the stove can be used according to the instructions

below with lighting and log feeding.

QUICK LIGHTING

It is important that the wood catches

fire quickly. Quick lighting is achieved

by opening the combustion air damper

fully or by leaving the door in the lighting

position for a moment. Smouldering, i.e.

reduced.

Wood loading

1. Open the door handle slightly and let the vacuum in the firebox

equalise for a few seconds before opening the door completely.

2. Add 2-3 logs of a combined weight

of approx 1.5-2.2 kg. One log is

placed diagonally and one or two

logs are placed parallel to the

back, see illustration to the right.

Then close the door.

3. The combustion damper must be completely open for 3-5

minutes until the logs turn black and catch fire. If you wish

for slower combustion, the supply of combustion air can now

be reduced. The conditions for controlling combustion vary

depending on the temperature in the stove and the draft in the

chimney.

4. The lowest output of 4 kW is usually obtained when the

combustion damper is 30% open and two logs are lit. In this

operating mode it is important that the combustion air damper

is fully open for the first 3-5 minutes so that the wood has the

chance to ignite fully before the supply of combustion air is

reduced. A condition of being able to control the heat output

is a thick bed of embers and a high temperature in the firebox.

When the fire has burnt down to embers is the time to add

more wood.

DEFRA exempted

The stove can be used in Smoke Control Areas. Smouldering, i.e.

reduced air supply, are prevented by blocking the combustion

damper of 4 kW output.

Lighting

If your house has mechanical exhaust air ventilation you will need

to open a window near the stove before lighting the fire. Leave

the window open for a few minutes until the fire has caught.

1. Open the controls for the combustion air fully.

2. Place some newspaper or a fire

lighter block, and approximately

2 kg kindling in the middle of the

stove. The wood should be piled

alternately across and lengthways.

3. Light the fire.

4. The hatch is set to the lighting position, that is the lower

locking hook must be hooked securely around the lock reel.

When the fire has caught fully after approx 10-15 minutes,

close the doors completely (see figures to right). The first load

of logs should not be put on until the start up fire has become

a glowing bed of embers.

Correctly sized wood

Note that if too little kindling is used when lighting, or if the wood

is too thickly cut, the fire box will not reach the correct operating

temperature. Incorrect lighting can lead to poor combustion with

heavy sooting and may result in the fire going out when the door

is shut.

Kindling wood: Finely chopped wood

Length: 25-35 cm

Diameter: 3-4 cm

Weight per lighting: 2.0 kg (approx. 10 - 12 finely chopped pieces)

Feeding Wood: Chopped wood

Length: 25-35 cm

Diameter: 6-7 cm

Normal weight: 1.5 kg/hour

Max weight: 2.2 kg/hour (2-3 logs per load)

CHOICE OF FUEL

All sorts of logs, such as birch,

beech, oak, elm, ash, conifers and

fruit trees can be used as fuel in

the stove. Different types of wood

have different density, the higher

the density the higher the energy

value. Oak, beech and birch have

the highest density.

The wood’s moisture

content

Fresh wood is about 50 per

cent water. Some of the water

circulates freely between the

fibres and some of the water is bound in the cells. The wood must

always be dried so that the free water evaporates. The timber is

ready for use when the moisture content has fallen below 20 %.

If wood with a higher moisture content is lit, a large part of the

energy content of the wood is used boiling off the water. If the

wood is damp, the combustion is also poor, layers of soot and tar

build up in the chimney and could, at worst, lead to a chimney fire.

In addition, it causes the glass of the tiled stove to soot and may

cause discomfort to those living nearby.

To ensure thoroughly dry wood, the wood should be cut in the

winter and stored, well aired, under a roof. Never cover the wood

pile with a tarpaulin to the ground. The tarpaulin will then act as a

sealed cover and the wood will be prevented from drying. Always

store a small amount of wood indoors for several days before use,

so that the surface moisture has time to evaporate.

You must NOT burn the following

Under no circumstances may pressure impregnated wood, painted

or glued wood, chipboard, plastic or colour brochures be used as

fuel. All these materials can create hydrochloric acid and heavy

metals that are damaging both to the environment and the stove.

Hydrochloric acid can also attack the steel in the chimney or the

mortar in a stone built chimney.

WHAT DOES THE SWAN MARK MEAN?

• ASwanmarkedstoveaffectstheenvironmentconsiderably

less than other stoves.

• ASwanmarkedstovehasprovenefficientcombustionandthe

whole production process from raw material to waste is taken

into consideration.

• TheSwanmarkplacesstringentrequirementson,amongother

things, the efficiency and emissions of particles, hydrocarbons

and carbon monoxide.

• Afireinanenvironmentallyadaptedstovewithhighefficiency

also means lower wood consumption to heat the home.

• TheSwanmarkmakesiteasyforyoutobepartofbuildinga

sustainable future.

378

001

378

001

STOVE MAINTENANCE

The glass may be come sooty with use, even if the fire is lit with dry

wood with a moisture content of 15 – 20%. Wiping with dry paper is

often sufficient when cleaning regularly. If the soot has been on the

glass for longer it can be removed using cleaning agent or a specific

soot removal agent. These cleaning agents can be purchased at your

local supermarket or your local stove dealer.

Never use cleaning agents that contain any abrasives, these can damage

the glass.

Ensure that no embers remain when removing ash from the stove. The

ash must be stored in a fireproof container with a lid for for at least a

week before being disposed of.

Soapstone can be cleaned using washing-up liquid or wiped with pure

acetone. Do not place flammable objects or candles on the soapstone.

The grate and other cast iron components can be cleaned using a

wirebrush.

It is important that the gaskets are checked from a combustion point of

view, because worn gaskets reduce combustion because the stove draws

additional air.

Painted parts of the stove can be cleaned with a damp cloth and, if

necessary, a little washing-up liquid. Damage, such as scratches, to

painted parts can be repaired using Contura touch up paint. Contact

your dealer.

Because there is a constant flow of air though the stove, cold room air

is drawn in and hot air released, dust can gather behind and under the

stove. Therefore, one should regularly clean under and behind the stove.

The fire should not be too big. Large fires are uneconomic and

also produce high smoke temperatures that can damage the

stove and the chimney. The recommended amount of wood is

1.5 kg/hour and the maximum permitted is 2.2 kg/hour and

then refers to burning split birch or other broadleaf wood

with 18% moisture content.

When lighting the same weight

of conifer wood, significantly

higher stove temperatures

are reached. Maximum fire for

long periods reduces the life

of the stove and exceeding the

permitted wood amounts can

lead to damage to parts of the

stove and the warranty being

invalidated.

AVOID TOO LARGE A FIRE

POSSIBLE CAUSES OF OPERATIONAL INTERFERENCE AND

HOW TO RECTIFY THEM

WHEN THE STOVE IS NEW

When the stove is new, a particular smell may be

detected, which indicates an oil coating and excess paint

on the panels.

After a number of fires the smell will disappear. A

particular lingering smell may occur after some use. The

smell comes from the insulation in the chimney. This can

be relieved by burning wood at 2.2 kg/hour for a period of

5-8 hours.

811102 IAV/BAV C51L GB-2

2013-02-27

SWEEPING

Sweeping the chimney ducts and chimney connections

should be carried out by a chimney sweep. The stove can

be scraped down and/or swept. A soot vacuum cleaner is

most appropriate however.

If a chimney fire occurs or is suspected, the combustion

damper and the door must be closed. If necessary,

contact the fire brigade to extinguish it. The chimney

must always be inspected by a chimney sweep after a

chimney fire.

Warning

• Duringoperation,certainsurfacesofthestovebecomeveryhot

and can cause burn injury if touched.

• Beawareofthestrongheatradiatedthroughthehatchglass.

• Placingflammablematerialcloserthanthesafedistance

indicated may cause a fire.

• Pyrelightingcancausequickgasignitionwiththeriskofdamage

to property and personal injury.

• Thewoodisdamp,whichcausespoorcombustionand

generates a lot of smoke as a result.

• Toolowtemperatureinthefirebox,whichcausesincomplete

combustion and poor draught in the chimney.

• Incorrectprocedure,thedoorwasnotinthelightingposition

for approximately 15 minutes.

Check the moisture content of the wood, ensure that you have

good base embers and go through the lighting instructions once

again.

Smoke odour around the stove for periods

This can occur when wind blows down the chimney and most often

occurs when the wind is from a particular direction. Another

cause is the door was opened when it is burning hard.

Painted parts have become discoloured

If painted parts have discoloured it is due to an excessive

temperature in the stove. The reason for the excessive

temperature can be that the maximum amount of wood has been

used, inappropriate fuel has been used (for example building

waste, large quantities of finely chopped off cuts). The warranty

does not cover damage of this type.

If a problem occurs that you cannot rectify yourself, contact the

dealer or a chimney sweep.

We hope that these words of advice will help you to enjoy

pleasant, economic and problem free use of your Contura stove.

Poor draught in the stove after new installation

• CheckthelengthofthechimneysothatitmeetsNIBE’s

recommendations, that is a total length of at least 3.5 metres.

• Checkthatthereisnothinginthechimneytorestrictthe

smoke and that no nearby buildings or trees affect the winds

around the chimney.

• Checktheareaofthechimney(appliestoexistingstonebuilt

chimneys), which should be 150-200 cm².

It is diﬃcult to light the ﬁre and the ﬁre dies after a

short time

• Thewoodmaynotbedryenough,checkthewood.

• Anotherreasonisthattheremaybenegativepressureinthe

house, for example when using a kitchen extractor fan or other

mechanical ventilation. Open a window near the stove before

lighting the fire. Also try lighting some newspaper and holding

it up inside the stove to get the draft going.

• Theairsupplyductfromtheoutsidemaybecompletelyor

partially blocked. Disconnect the hose and try lighting the fire

with combustion air from the room

• Perhapsthecombustionairdamperisnotopen.

• Thesmokeoutletofthestovemaybeblockedwithsoot,which

can occur after sweeping. Lift the smoke baffle out and check.

• Finallygothroughthelightinginstructionsagain.Perhaps

the amount of kindling was too small and therefore the base

embers were too weak and cold to light the next load of wood.

NIBE AB · Box 134 · SE-285 23 Markaryd · Sweden

www.contura.eu

Contura reserves the right to change colours, materials,

dimensions and models at any time without special notice.

Your dealer can give you the most up to date information.

Stoves shown in brochures may have optional extras.

Contura 51L Operating instructions

Brand: Contura

Model: 51L

Category: Pellet stove

Type: Operating instructions

Download PDF

report

Contura 51L Operating instructions

Contura 51L Operating instructions

Related papers

Other documents